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Coral Reefs

Marine ecosystem

About

Coral reefs are vibrant marine ecosystems, renowned for their incredible biodiversity and ecological importance. These underwater structures are formed by colonies of coral polyps, which secrete a hard calcium carbonate exoskeleton. Coral reefs thrive in shallow, tropical waters where sunlight is abundant, supporting photosynthesis by the symbiotic algae that live within the coral tissues. This mutualistic relationship is crucial for the survival of corals, as the algae provide essential nutrients. Coral reefs support a vast array of marine life, including fish, mollusks, and crustaceans, making them critical habitats for many species. Coral reefs face numerous threats, including rising ocean temperatures, which can cause coral bleaching, and ocean acidification, which hampers coral growth. Local impacts such as pollution, overfishing, and destructive fishing practices also degrade these ecosystems. Despite these challenges, coral reefs provide vital ecosystem services, including shoreline protection and supporting fisheries. They are also significant economic resources, contributing to tourism and local livelihoods. Efforts to protect coral reefs are essential to preserve these unique ecosystems for future generations.